January 4 » Utah is admitted as the 45th U.S. state.
April 6 » In Athens, the opening of the first modern Olympic Games is celebrated, 1,500 years after the original games are banned by Roman emperor Theodosius I.
May 27 » The F4-strength St. Louis–East St. Louis tornado hits in St. Louis, Missouri, and East St. Louis, Illinois, killing at least 255 people and causing over $10-million in damage.
June 4 » Henry Ford completes the Ford Quadricycle, his first gasoline-powered automobile, and gives it a successful test run.
December 10 » Alfred Jarry's Ubu Roi premieres in Paris. A riot breaks out at the end of the performance.
December 14 » The Glasgow Underground Railway is opened by the Glasgow District Subway Company.
Day of death September 11, 1956
The temperature on September 11, 1956 was between 11.9 °C and 17.5 °C and averaged 14.7 °C. There was 14.2 mm of rain during 5.6 hours. There was 1.2 hours of sunshine (9%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
January 26 » Soviet Union cedes Porkkala back to Finland.
March 1 » The International Air Transport Association finalizes a draft of the Radiotelephony spelling alphabet for the International Civil Aviation Organization.
June 20 » A Venezuelan Super-Constellation crashes in the Atlantic Ocean off Asbury Park, New Jersey, killing 74 people.
October 15 » FORTRAN, the first modern computer language, is first shared with the coding community.
October 30 » Hungarian Revolution: The government recognizes the new workers' councils. Army officer Béla Király leads an attack on the Communist Party headquarters.
December 19 » Irish-born physician John Bodkin Adams is arrested in connection with the suspicious deaths of more than 160 patients. Eventually he is convicted only of minor charges.
When copying data from this family tree, please include a reference to the origin: A.G.M. de Greef, "Family tree De Greef Nuenen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-de-greef-nuenen/I1101.php : accessed June 24, 2024), "Antonetta de Greef (1896-1956)".
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